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Movement And Territoriality Of Wintering Hermit Thrushes In Southeastern Louisiana, David R. Brown, Philip C. Stouffer, Cheryl M. Strong Jan 2000

Movement And Territoriality Of Wintering Hermit Thrushes In Southeastern Louisiana, David R. Brown, Philip C. Stouffer, Cheryl M. Strong

Faculty Publications

We describe the spatial organization and social behavior of Hermit Thrushes (Catharus guttatus) wintering in pine plantations and an adjacent hardwood forest in Tangipahoa Parish, Louisiana over three winters. We used point counts (n = 403) to collect data on agonistic behaviors and relative abundance within the study area. We used mist-netting to study site fidelity on four 9-ha plots within and among years. We used radio-telemetry to measure Hermit Thrushes' movements and territoriality (n = 50). We found that Hermit Thrushes saturated suitable patches within the study area. Most Hermit Thrushes actively defended small [mean = 0.55 ± 0.03 …

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Regional Differences In Understanding Between Two Groups Of High School Science Students On A Complex Environmental Science Concept Known As The Dead Zone Of The Gulf Of Mexico: A Web -Based Approach., Sharon Ann Flanagan Jan 2000

Regional Differences In Understanding Between Two Groups Of High School Science Students On A Complex Environmental Science Concept Known As The Dead Zone Of The Gulf Of Mexico: A Web -Based Approach., Sharon Ann Flanagan

LSU Historical Dissertations and Theses

The main research focus of this study was on the regional differences in understanding of two groups of high school science students for a complex environmental scientific phenomenon known as the Dead Zone of the Gulf of Mexico. Participating high school students were drawn from Dead Zone source and effect areas---Iowa chemistry students and Louisiana environmental science students. Students were given a pre- and postinstructional survey concerning environmental issues---including the issue of the Dead Zone or hypoxia of the Gulf of Mexico. The treatment group visited a web site on the Dead Zone constructed for this study, and interacted with …

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A Case Study Of The Developing Literacy Of African -American Learners Attending A Tutoring Program At An Urban African -American Church., Gayle Williams Duskin Jan 2000

A Case Study Of The Developing Literacy Of African -American Learners Attending A Tutoring Program At An Urban African -American Church., Gayle Williams Duskin

LSU Historical Dissertations and Theses

This study describes the literate abilities of a group of upper level elementary African-American school children who participated in an urban, African-American, church-sponsored, after-school tutorial program. Using an ethnographic research method, I relied on field notes, audio-taped interviews, and writing samples to collect and analyze the data. The participants in the study were six subjects (five females and one male, ages 10 to 12) who were enrolled in the tutorial program. Over the course of seven months (October, 1997 to May, 1998), I observed all activities in which writing literacy took place at the tutorial program. From this observation three …

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Behavioral Outcome Of Preschoolers Exposed Prenatally To Cocaine: The Role Of The Caregiving Environment., Veronica L. Haynes Jan 2000

Behavioral Outcome Of Preschoolers Exposed Prenatally To Cocaine: The Role Of The Caregiving Environment., Veronica L. Haynes

LSU Historical Dissertations and Theses

This study evaluated the long-term effects of prenatal cocaine exposure on child behavioral outcome at age 5 years, while considering the influence of the postnatal caregiving environment indicated by maternal drug use, maternal psychological functioning, and parenting quality. Behavioral outcome was measured by parent-reported behavior problems on the Achenbach Child Behavior Checklist. Subjects were 210 preschoolers (107 cocaine-exposed and 103 nondrug-exposed) and their biological mothers drawn from a larger cohort of mother-child pairs enrolled at birth in a longitudinal study evaluating the neurodevelopmental outcomes of children prenatally exposed to cocaine. The relationships among prenatal cocaine exposure, maternal adaptation (i.e., maternal …

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Environmental Voting In Congress., John Christopher Howell Jan 2000

Environmental Voting In Congress., John Christopher Howell

LSU Historical Dissertations and Theses

This research project is designed to explore the field of voting on environmental issues in the House of Representatives. A variety of factors are considered in determining why representatives vote as they do; among those factors are party identification, ideology, gender, and region of the country. Special attention is devoted to the difference between those environmental issues in which private property rights are involved and those in which property rights are not at issue. The research project consists of four case studies, each one of an environmental issue. Each case study describes the issue and explains why it is pertinent …

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The Early Local And Regional Immune Response To Recall Inoculations Of Mycobacterium Leprae In The Skin Of Rhesus Macaques (Macaca Mulatta)., Thomas Xavier D Lemarchand Jan 2000

The Early Local And Regional Immune Response To Recall Inoculations Of Mycobacterium Leprae In The Skin Of Rhesus Macaques (Macaca Mulatta)., Thomas Xavier D Lemarchand

LSU Historical Dissertations and Theses

Epidemiological studies have failed to show any important impact of human immunodeficiency virus (HIV) infection and disease on leprosy, in contrast to the well documented increase in incidence and morbidity with other mycobacteria in these patients, notably Mycobacterium tuberculosis. The early events following exposure and repeated exposure to Mycobacterium leprae (ML) have not still been studied. Previous studies of first inoculations of ML in the skin of rhesus monkeys have indicated delayed recruitment of CD4+ cells and delayed interleukin (IL) 2 secretion in skin inoculation sites in simian immunodeficiency (SIV) positive animals. The development of the secondary immune response against …

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Individualized Levels Treatment Packages For Severe Problem Behaviors In Persons With Developmental Disabilities., Karena Suzanne Rush Jan 2000

Individualized Levels Treatment Packages For Severe Problem Behaviors In Persons With Developmental Disabilities., Karena Suzanne Rush

LSU Historical Dissertations and Theses

Levels treatment packages are widely used across many populations and settings. Most packages involve standardized procedures implemented across multiple participants. The current investigation examined the treatment efficacy of individualized levels treatment packages based on the results of functional analyses and systematic preference assessments. Three individuals with developmental disabilities participated in the study. Destructive behaviors for each participant were maintained by positive reinforcement. For one participant, destructive behaviors were maintained by negative reinforcement as well. The levels treatment packages consisted of two or three levels in which the density of attention and access to preferred materials were altered based on the …

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Dna Alkylation And Its Repair In Small Fish Species., Thomas James Vicek Jan 2000

Dna Alkylation And Its Repair In Small Fish Species., Thomas James Vicek

LSU Historical Dissertations and Theses

Mechanisms of DNA alkylation and repair were investigated in 3 small fish species. Following aqueous exposure to either N-methyl- N'-nitro-N-nitrosoguanidine or ethyl methanesulfonate, the hepatic DNA from the western mosquitofish, Gambusia affinis, was analyzed for alkyl-DNA adducts via high performance liquid chromatography - mass spectrometry/mass spectrometry. Although potential tissue detection limits ranged from 14--101 fmoles of alkyl adducts/mg tissue, no alkyl-DNA adducts were detected in the exposed tissues. To assess the potential repair of alkyl-DNA adducts in 2 other small fish species, alkyltransferase activities within hepatic protein extracts of the Gulf killifish, Fundulus grandis, and Gambusia affinis were determined using …

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Biometrical Models For Predicting Future Performance In Plant Breeding., Monica Graciela Balzarini Jan 2000

Biometrical Models For Predicting Future Performance In Plant Breeding., Monica Graciela Balzarini

LSU Historical Dissertations and Theses

The plant breeding process begins with the selection of parents and crosses. Promising progeny from these crosses progress through a series of selection stages that typically culminate in multi-environment trials. I evaluated best linear unbiased predictors (BLUP), other predictors and prediction models at the initial (cross prediction), early replicated testing and late (multi-location) stages of a sugarcane breeding selection cycle. Model and predictor accuracy was assessed in the first two stages by using cross-validation procedures. I compared statistical models of progeny test data in their ability to predict the cross performance of untested sugarcane crosses. Random parental effect predictors and …

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Anxiety And Orange Blossoms: Sexual Economics In Wedding Texts By Grace Lumpkin, Eudora Welty, And Alice Childress., Ida Maxwell Wells Jan 2000

Anxiety And Orange Blossoms: Sexual Economics In Wedding Texts By Grace Lumpkin, Eudora Welty, And Alice Childress., Ida Maxwell Wells

LSU Historical Dissertations and Theses

This study examines how problematic representations of brides reflect anxiety about women's roles in the marriage market of the early twentieth-century United States in Grace Lumpkin's The Wedding, Eudora Welty's Delta Wedding, and Alice Childress's Wedding Band: A Love /Hate Story in Black and White. The study develops a theoretical model of stages young women negotiate in order to participate in the sexual economic process underlying the marriage exchange: initiate, self-fashioner, marriageable woman, bride, wife, and mother. In moving through these stages, the young woman increasingly loses her identity as she fashions herself into the socially-constructed persona "lady," or marriageable …

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Models Of Professional Development For Teachers: Factors Influencing Technology Implementation In Elementary Schools., Marilyn Hill Catchings Jan 2000

Models Of Professional Development For Teachers: Factors Influencing Technology Implementation In Elementary Schools., Marilyn Hill Catchings

LSU Historical Dissertations and Theses

This qualitative multiple case study explored factors which contribute to the implementation of technology in elementary schools. This research had a phenomenological focus because there was a concentration on the structure and essence of the experiences of the teachers and leaders in the phenomenon, the implementation of technology in the school. The four schools chosen for the study were judged to have outstanding technology implementation by state technology leaders and a researcher screening process. They were selected because the researcher determined that these cases were the ones from which the most could be learned. These particular schools had ample technology …

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Successful Pirates And Capitalist Fantasies: Charting Fictional Representations Of Eighteenth- And Early Nineteenth -Century English Fortune Hunters., Robert Gordon Dryden Jan 2000

Successful Pirates And Capitalist Fantasies: Charting Fictional Representations Of Eighteenth- And Early Nineteenth -Century English Fortune Hunters., Robert Gordon Dryden

LSU Historical Dissertations and Theses

Successful Pirates and Capitalist Fantasies investigates British pirate fiction during the emergence of capitalism. I initially began my dissertation with the intention of focusing on historical pirates, privateers, and common sailors (the men who "turned" pirate) in the seventeenth and eighteenth centuries, but after close readings of pirate ballads, rogue biographies, plays, novellas, and novels by (among others) Daniel Defoe, John Gay, Charles Johnson, and Jane Austen, I determined that this pirate fiction is not about the historical pirate at all; the deployment of pirate figures in eighteenth- and early nineteenth-century British fiction is an invented tradition of representation that …

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Advanced Oxidation Processes For Remediation Of Explosives -Contaminated Soils., Elizabeth Covington Fleming Jan 2000

Advanced Oxidation Processes For Remediation Of Explosives -Contaminated Soils., Elizabeth Covington Fleming

LSU Historical Dissertations and Theses

Explosives contamination in soils is an environmental concern for the public due to their toxic effects. The United States Department of Defense (DoD) is particularly concerned with explosives contamination in soils due to the thousands of sites for which it is responsible for remediating. To date, the most common technology utilized for remediating explosives contamination in soils has been incineration. However, costs for incineration have been estimated to range from approximately $250 to $3250 per ton and are generally inversely related to the volume of soil. The use of advanced oxidation processes (AOPs), including dark and illuminated forms, was evaluated …

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Caring For The Soul In A Postmodern Age: The Political Thought Of Jan Patocka., Edward Francis Findlay Jan 2000

Caring For The Soul In A Postmodern Age: The Political Thought Of Jan Patocka., Edward Francis Findlay

LSU Historical Dissertations and Theses

This study undertakes to examine the political thought of the late Czech philosopher and Charter 77 spokesman, Jan Patocka. It leads to a consideration of the fundamental problem of contemporary and postmodern theory, the question of a metaphysical foundation for our philosophical and political self-understanding. Patocka asserted the common origin of philosophy and politics in ancient Greece and maintained that their animating force was freedom, understood ontologically as our ability to transcend the merely objective and relative in life and to see human being as a being of possibility. He called this insight, embodied in the activity of Socrates, the …

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Effects Of Suggestive Questioning On Women's Self -Report Of Pain Information Following Colposcopy., Jodie Rabalais Guth Jan 2000

Effects Of Suggestive Questioning On Women's Self -Report Of Pain Information Following Colposcopy., Jodie Rabalais Guth

LSU Historical Dissertations and Theses

This study examined the effects of suggestive questioning on women's retrospective ratings of pain and anxiety experienced during colposcopy. The wording of questions was varied between participants (Pain Suggesting, Pain Denying, or No Suggestion). Number of recall sessions was also varied between participants in that some participants completed two ratings (Immediate and Delayed Recall) while others completed only one rating (Delayed Recall). Trait anxiety, pain severity at the time of the memory task, and medical procedure (whether or not the patient underwent a biopsy) were included in the analyses as covariates. Ratings of sensory and affective pain severity as well …

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The Effects And Mechanism Of Action Of Cimetidine On Inducible Nitric Oxide Synthase Using An Equine Soft-Tissue Inflammation Model., Robert Paul Hunter Jan 2000

The Effects And Mechanism Of Action Of Cimetidine On Inducible Nitric Oxide Synthase Using An Equine Soft-Tissue Inflammation Model., Robert Paul Hunter

LSU Historical Dissertations and Theses

Cytochrome P-450 (CYP) and inducible nitric oxide synthase (iNOS) are similar heme containing enzymes. Cimetidine (CIM) is an H2 antagonist, and since CIM inhibits CYP, it may also bind to the heme-iron of NOS and reduce NO generation. Six horses each had three tissue chambers inserted subcutaneously on either side of the neck for Trial 1. Trial 2 also used 6 female Thoroughbred horses implanted with at least two tissue chambers as in Trial 1. Blood and tissue chamber fluid (TCF) were sampled at -24, 0, 4, 8, 12 h and at 1, 2, 3, 5, and 7 days after …

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American Alligator Nesting Ecology In Impounded Marsh Habitat, Louisiana., Steven Richard Reagan Jan 2000

American Alligator Nesting Ecology In Impounded Marsh Habitat, Louisiana., Steven Richard Reagan

LSU Historical Dissertations and Theses

The goal was to monitor a large number of female alligators over a 3-year period to obtain information on alligator nesting ecology. This dissertation, although designed to estimate annual nesting rates, provides additional meaningful information on methods of capture, tag retention rates, nest spacing patterns, segregation of size classes, nest site fidelity, the relationship between attendance and nest success, the effects of fire ants on alligator nest success, the relationship between hatchling alligators and their mother, and hatchling dispersal. Passive integrated transponder (PIT), monel web, and cranial mounted reflector tags were evaluated for marking and identifying alligators. Use of harmonic …

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Traumatic Life Events, Posttraumatic Stress Disorder, And Health Outcomes In A Low -Income, Primary Care Population., Bradford West Applegate Jan 2000

Traumatic Life Events, Posttraumatic Stress Disorder, And Health Outcomes In A Low -Income, Primary Care Population., Bradford West Applegate

LSU Historical Dissertations and Theses

Research suggests that individuals with Posttraumatic Stress Disorder (PTSD) have significant dysregulation in a number of physiological indices, especially the sympathetic nervous system (SNS) and hypothalamic-pituitary-adrenal (HPA) axis. Biological theories of PTSD propose that prolonged SNS and HPA axis dysregulation places individuals with PTSD at risk for development of medical morbidity and impairments in health status. The present study examined the following research questions: (a) what is the prevalence of traumatic life events and PTSD in a low-income primary care population? (b) does PTSD predict impairments in self-reported health status after controlling for age, alcohol abuse, tobacco use, and obesity? …

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Intestinal Bioavailability And Biotransformation Of 3,4,3',4'-Tetrachlorobiphenyl In The Channel Catfish, Ictalurus Punctatus., Adriana Maria Doi Jan 2000

Intestinal Bioavailability And Biotransformation Of 3,4,3',4'-Tetrachlorobiphenyl In The Channel Catfish, Ictalurus Punctatus., Adriana Maria Doi

LSU Historical Dissertations and Theses

These studies examined the role of micelle fatty acid composition, contaminant body burden, biotransformation, and non-specific toxicity on the systemic bioavailability of 3,4,3',4'-tetrachlorobiphenyl (TCB) from the intestine of catfish, as well as the effect of TCB upon the vectorial transporter p-glycoprotein (pgp). Initial in vitro experiments demonstrated that the solubility of [14C]-TCB in micelles was favored by longer chain fatty acids, with higher [14C]-TCB solubility correlating to greater systemic bioavailability of [14C]-TCB in an in situ preparation. The systemic bioavailability of [14C]-TCB was demonstrated to be affected by in vivo exposures to TCB, in a dose-independent manner, and apparently unrelated …

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Validation Of A Screening Instrument For Exposure To Violence In Children: The Kid -Save., Anise Lavaun Flowers Jan 2000

Validation Of A Screening Instrument For Exposure To Violence In Children: The Kid -Save., Anise Lavaun Flowers

LSU Historical Dissertations and Theses

Children in the United States have an increasing rate of exposure to chronic community violence. Research on children exposed to community, domestic, and war-related violence has demonstrated the traumatic effects of violence on children. The KID-SAVE was developed as an empirically-based self-report measure of violence exposure for children in grades three through seven. During an initial development study, the KID-SAVE demonstrated excellent reliability and preliminary construct validity data. The purpose of the present study was to provide further validity data on the KID-SAVE. A sample of 188 children (96 boys and 92 girls) and their parents participated in the study. …

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Indices Of Exposure To Polycyclic Aromatic Hydrocarbons In A Bioindicator Species: Point Mutation Detection In The Cotton Rat., Christine H. Lemarchand-Carpentier Jan 2000

Indices Of Exposure To Polycyclic Aromatic Hydrocarbons In A Bioindicator Species: Point Mutation Detection In The Cotton Rat., Christine H. Lemarchand-Carpentier

LSU Historical Dissertations and Theses

Release of energy-related contaminants occurs ubiquitously in the environment. Cancer induction by polycyclic aromatic hydrocarbons (PAHs) and aromatic amines have been well recognized in the workplace and are also suspected among the general population. Environmental PAHs exposure and effects have been investigated using biomarkers in aquatic and, to a lesser extent, terrestrial animals. Attempts to monitor the presence and effects of PAHs through the detection of point mutations in genes involved in carcinogenesis (p53 and K-ras) would yield interesting clues regarding possible etiologic agents and their potential effect. The identification of a mutation type, known to be G→T transversion predominantly …

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Coping Strategies And Effectiveness Among Low -Income, Primary Care Patients With Anxiety Disorders., Daniel J. Mehan Jr Jan 2000

Coping Strategies And Effectiveness Among Low -Income, Primary Care Patients With Anxiety Disorders., Daniel J. Mehan Jr

LSU Historical Dissertations and Theses

This study examined the patterns and effectiveness of coping strategies utilized by individuals in a low-income, primary care environment. Documented relationships among coping strategies and the characteristics of this population suggest that the population should be marked by high levels of emotion-focused coping and low levels of problem-focused coping relative to the normal population. Descriptive statistics confirmed high levels of emotion-focused coping but failed to demonstrate low levels of problem-focused coping within the study sample. The influence of control (actual and perceived) on the patterns and effectiveness of coping strategies was also studied. Regression analyses indicated that, in the low-control …

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The Children Of Molemo: An Analysis Of Johnny Simons' Performance Genealogy And Iconography At The Hip Pocket Theatre., Tony Earnest Medlin Jan 2000

The Children Of Molemo: An Analysis Of Johnny Simons' Performance Genealogy And Iconography At The Hip Pocket Theatre., Tony Earnest Medlin

LSU Historical Dissertations and Theses

Johnny Simons is a Commedia Dell' Arte master who brought contemporary commedic movement theatre to the American Southwest and deserves academic attention. Simons and his collaborators, Diane Simons and Doug Balentine, founded the Hip Pocket Theatre to explore original theatre that reflected their chthonic identity. Simons is an auteur, serving as playwright, lyricist, director, choreographer, designer, and technical director for his productions. His works synthesize classical forms with the archetypal associations of his childhood. This study examines Simons' pedagogical approach to his "lyric grotesque" genre of movement theatre. A documented recreation of Simons' most definitive work, the folk/rock operatic-ballet, The …

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Francis Hayman: An Artist Reading British Literature In The 1740s., Stephen Alan Raynie Jan 2000

Francis Hayman: An Artist Reading British Literature In The 1740s., Stephen Alan Raynie

LSU Historical Dissertations and Theses

The on-going comparison of the sister arts (poetry and painting) in the eighteenth century recommends a reassessment of Francis Hayman's role as an artist reading and interpreting literary texts. A founding member of the Royal Academy in 1768, Francis Hayman began his artistic career as a scene painter at the Goodman's Fields and Drury Lane theaters. Although Hayman was one of the most prolific book illustrators in mid eighteenth century Britain, relatively little critical attention has been devoted to his work. Moreover, his circle of friends included such Old Slaughter's and St. Martin's Lane Academy regulars as Henry Fielding, William …

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Pathogenesis Of Bartonella Henselae In The Domestic Cat: Use Of A Pcr-Based Assay For The Detection And Differentiation Of B. Henselae Genotype I And Genotype Ii In Chronically Infected Cats., Alma Faye Roy Jan 2000

Pathogenesis Of Bartonella Henselae In The Domestic Cat: Use Of A Pcr-Based Assay For The Detection And Differentiation Of B. Henselae Genotype I And Genotype Ii In Chronically Infected Cats., Alma Faye Roy

LSU Historical Dissertations and Theses

Bartonella henselae is a zoonotic agent in which the domestic cat serves as the natural reservoir, and humans acquire potentially serious infections associated with this microorganism. The purpose of this research is to contribute to the understanding of the pathogenesis of B. henselae in the domestic cat using a molecular approach. Using sequence differences in a portion of the I 6S rRNA gene between B. henselae genotype I, and B. henselae genotype II, a nested polymerase chain reaction (nPCR) was designed and used to investigate various phases of feline bartonellosis. The nPCR detected 3.2 organisms per milliliter of blood which …

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The Effects Of Dietary Fatty Acids And Non -Steroidal Anti -Inflammatory Drugs On Cyclooxygenase-2 Expression., Kyung-Hee Sohn Jan 2000

The Effects Of Dietary Fatty Acids And Non -Steroidal Anti -Inflammatory Drugs On Cyclooxygenase-2 Expression., Kyung-Hee Sohn

LSU Historical Dissertations and Theses

Dietary n-3 fatty acids and non-steroidal anti-inflammatory drugs (NSAIDs) were shown to have cancer preventive and tumor regressive effects. Fatty acids and NSAIDs are substrate and inhibitors, respectively, of cyclooxygenase-2 (COX-2), which is a key enzyme in the conversion of arachidonic acids to prostaglandins. Thus, the modulating effects of different types of dietary fatty acids and NSAIDs on the expression of COX-2 are studied here. Results show that both n-3 and n-6 polyunsaturated fatty acids (PUFAs) inhibit Lipopolysaccharide (LPS)-induced COX-2 expression and NF-kappaB activation in macrophages. Results from in vitro cell proliferation study indicate that growth of colon tumor cells …

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Active Site Interactions And Kinetic Characterization Of C- And N-Nitroso And Peroxidic Substrates With Alcohol Dehydrogenase: Mechanistic Insights From Studies Of The Cobalt -Substituted Enzyme., Alexander Gregory Tkachenko Jan 2000

Active Site Interactions And Kinetic Characterization Of C- And N-Nitroso And Peroxidic Substrates With Alcohol Dehydrogenase: Mechanistic Insights From Studies Of The Cobalt -Substituted Enzyme., Alexander Gregory Tkachenko

LSU Historical Dissertations and Theses

The interaction of ADH with C-nitroso, N-nitroso and peroxide substrates was investigated. To better elucidate the mechanism of these interactions, cobalt-substituted HLADH was introduced and compared with native HLADH. Both binary and ternary complexes of p-nitrosophenol with Co(II)ADH caused a blue-shift of the d-d transition region of the Co(II)ADH spectrum, indicating direct interaction of the C-nitroso moiety with the metal active site. In addition to this blue shift with NADH, both pNSP and N,N'-dimethyinitrosamine enhance the absorbance of the 643 nm peak of the ADH/NADH/pyrazole ternary complex, which suggests that these compounds compete with pyrazole for ligand association with the …

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Boron -Uptake Mechanisms And Boron Nutrition Of Rice., Xiaohe Yu Jan 2000

Boron -Uptake Mechanisms And Boron Nutrition Of Rice., Xiaohe Yu

LSU Historical Dissertations and Theses

There are very few studies on B deficiency in rice (Oryza sativa L.). Reported critical values of B deficiency in rice are contradictory and mechanisms of B uptake by plant are not understood. Objectives of this study were to determine B effects on rice grown in hydroponics and soil; to determine critical values of B deficiency in rice tissues, hydroponic solution and soil; and to explore B-uptake mechanisms in both monocots (rice) and dicots (soybean (Glycine max L.)). Rice was grown to maturity in an acid Caddo silt loam at 0 and 1 kg B ha--1 in a greenhouse study, …

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Evaporative Mass Transfer Of Hydrophobic Organic Compounds From Exposed Contaminated Sediment And Dredged Materials., Raghunathan Ravikrishna Jan 2000

Evaporative Mass Transfer Of Hydrophobic Organic Compounds From Exposed Contaminated Sediment And Dredged Materials., Raghunathan Ravikrishna

LSU Historical Dissertations and Theses

Dredged sediment materials stored in confined disposal facilities (CDF) contain several hydrophobic organic compounds (HOC) such as polynuclear aromatic hydrocarbons (PAH), some of which are suspected carcinogens. The primary objective of this study was to evaluate the volatilization of HOCs from contaminated, exposed sediment dredged materials and contribute to the risk assessment framework being developed by the U.S. Army Corps of Engineers. Laboratory experiments were performed to measure HOC tracer emissions to air from contaminated sediments (laboratory inoculated and field aged) placed in a specially designed flux chamber. Flux was influenced by a number of factors such as relative humidity …

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Politics And Philosophy In The Writings Of Robert Penn Warren., Billy Berryhill Jan 2000

Politics And Philosophy In The Writings Of Robert Penn Warren., Billy Berryhill

LSU Historical Dissertations and Theses

Robert Penn Warren is generally regarded as one of America's preeminent men of letters in the twentieth century. In his poetry and novels-as well as his historical essays, literary and social criticism, biographies, and other non-fiction---Warren often addressed political themes. This study of the role of political ideas in Warren's writings begins with his concept of the "philosophical novelist" who consciously incorporates ideas into fiction. An examination of Warren's own essays about his novel All the King's Men provides a useful illustration of the concept and introduces the reader to two key themes that pervade all of his writings: first, …

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